content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * ----------------
   * MarkerTests.java
   * ----------------
   * (C) Copyright 2006-2012, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 05-Sep-2006 : Version 1 (DG);
   * 17-Jun-2012 : Removed JCommon dependencies (DG);
   *
   */
  
  package org.jfree.chart.plot;
  
  import org.jfree.chart.event.MarkerChangeEvent;
  import org.jfree.chart.event.MarkerChangeListener;
  import org.jfree.chart.ui.LengthAdjustmentType;
  import org.jfree.chart.ui.RectangleAnchor;
  import org.jfree.chart.ui.RectangleInsets;
  import org.jfree.chart.ui.TextAnchor;
  import org.junit.Test;
  
  import java.awt.BasicStroke;
  import java.awt.Color;
  import java.awt.Font;
  import java.util.Arrays;
  import java.util.EventListener;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  /**
   * Tests for the {@link Marker} class.
   */
  public class MarkerTest  implements MarkerChangeListener {
  
      MarkerChangeEvent lastEvent;
  
  
  
  
  
      /**
       * Some checks for the getPaint() and setPaint() methods.
       */
      @Test
      public void testGetSetPaint() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(Color.gray, m.getPaint());
          m.setPaint(Color.BLUE);
          assertEquals(Color.BLUE, m.getPaint());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setPaint(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'paint' argument.", e.getMessage());
          }
      }
  
      /**
       * Some checks for the getStroke() and setStroke() methods.
       */
      @Test
      public void testGetSetStroke() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(new BasicStroke(0.5f), m.getStroke());
          m.setStroke(new BasicStroke(1.1f));
          assertEquals(new BasicStroke(1.1f), m.getStroke());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setStroke(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'stroke' argument.", e.getMessage());
          }
      }
  
      /**
       * Some checks for the getOutlinePaint() and setOutlinePaint() methods.
       */
      @Test
      public void testGetSetOutlinePaint() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(Color.gray, m.getOutlinePaint());
          m.setOutlinePaint(Color.yellow);
          assertEquals(Color.yellow, m.getOutlinePaint());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          m.setOutlinePaint(null);
          assertEquals(null, m.getOutlinePaint());
      }
  
      /**
       * Some checks for the getOutlineStroke() and setOutlineStroke() methods.
       */
      @Test
      public void testGetSetOutlineStroke() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(new BasicStroke(0.5f), m.getOutlineStroke());
          m.setOutlineStroke(new BasicStroke(1.1f));
          assertEquals(new BasicStroke(1.1f), m.getOutlineStroke());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          m.setOutlineStroke(null);
          assertEquals(null, m.getOutlineStroke());
      }
  
      private static final float EPSILON = 0.000000001f;
  
      /**
       * Some checks for the getAlpha() and setAlpha() methods.
       */
      @Test
      public void testGetSetAlpha() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(0.8f, m.getAlpha(), EPSILON);
          m.setAlpha(0.5f);
          assertEquals(0.5f, m.getAlpha(), EPSILON);
          assertEquals(m, this.lastEvent.getMarker());
      }
  
      /**
       * Some checks for the getLabel() and setLabel() methods.
       */
      @Test
      public void testGetSetLabel() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(null, m.getLabel());
          m.setLabel("XYZ");
          assertEquals("XYZ", m.getLabel());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          m.setLabel(null);
          assertEquals(null, m.getLabel());
      }
  
      /**
       * Some checks for the getLabelFont() and setLabelFont() methods.
       */
      @Test
      public void testGetSetLabelFont() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(new Font("SansSerif", Font.PLAIN, 9), m.getLabelFont());
          m.setLabelFont(new Font("SansSerif", Font.BOLD, 10));
          assertEquals(new Font("SansSerif", Font.BOLD, 10), m.getLabelFont());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setLabelFont(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'font' argument.", e.getMessage());
          }
      }
  
      /**
       * Some checks for the getLabelPaint() and setLabelPaint() methods.
       */
      @Test
      public void testGetSetLabelPaint() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(Color.BLACK, m.getLabelPaint());
          m.setLabelPaint(Color.RED);
          assertEquals(Color.RED, m.getLabelPaint());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setLabelPaint(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'paint' argument.", e.getMessage());
          }
      }
  
      /**
       * Some checks for the getLabelAnchor() and setLabelAnchor() methods.
       */
      @Test
      public void testGetSetLabelAnchor() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(RectangleAnchor.TOP_LEFT, m.getLabelAnchor());
          m.setLabelAnchor(RectangleAnchor.TOP);
          assertEquals(RectangleAnchor.TOP, m.getLabelAnchor());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setLabelAnchor(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'anchor' argument.", e.getMessage());
          }
      }
  
      /**
       * Some checks for the getLabelOffset() and setLabelOffset() methods.
       */
      @Test
      public void testGetSetLabelOffset() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(new RectangleInsets(3, 3, 3, 3), m.getLabelOffset());
          m.setLabelOffset(new RectangleInsets(1, 2, 3, 4));
          assertEquals(new RectangleInsets(1, 2, 3, 4), m.getLabelOffset());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setLabelOffset(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'offset' argument.", e.getMessage());
          }
      }
  
      /**
       * Some checks for the getLabelOffsetType() and setLabelOffsetType()
       * methods.
       */
      @Test
      public void testGetSetLabelOffsetType() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(LengthAdjustmentType.CONTRACT, m.getLabelOffsetType());
          m.setLabelOffsetType(LengthAdjustmentType.EXPAND);
          assertEquals(LengthAdjustmentType.EXPAND, m.getLabelOffsetType());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setLabelOffsetType(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'adj' argument.", e.getMessage());
          }
      }
  
      /**
       * Some checks for the getLabelTextAnchor() and setLabelTextAnchor()
       * methods.
       */
      @Test
      public void testGetSetLabelTextAnchor() {
          // we use ValueMarker for the tests, because we need a concrete
          // subclass...
          ValueMarker m = new ValueMarker(1.1);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(TextAnchor.CENTER, m.getLabelTextAnchor());
          m.setLabelTextAnchor(TextAnchor.BASELINE_LEFT);
          assertEquals(TextAnchor.BASELINE_LEFT, m.getLabelTextAnchor());
          assertEquals(m, this.lastEvent.getMarker());
  
          // check null argument...
          try {
              m.setLabelTextAnchor(null);
              fail("Expected an IllegalArgumentException for null.");
          }
          catch (IllegalArgumentException e) {
              assertEquals("Null 'anchor' argument.", e.getMessage());
          }
      }
  
      /**
       * Checks that a CategoryPlot deregisters listeners when clearing markers.
       */
      @Test
      public void testListenersWithCategoryPlot() {
          CategoryPlot plot = new CategoryPlot();
          CategoryMarker marker1 = new CategoryMarker("X");
          ValueMarker marker2 = new ValueMarker(1.0);
          plot.addDomainMarker(marker1);
          plot.addRangeMarker(marker2);
          EventListener[] listeners1 = marker1.getListeners(
                  MarkerChangeListener.class);
          assertTrue(Arrays.asList(listeners1).contains(plot));
          EventListener[] listeners2 = marker1.getListeners(
                  MarkerChangeListener.class);
          assertTrue(Arrays.asList(listeners2).contains(plot));
          plot.clearDomainMarkers();
          plot.clearRangeMarkers();
          listeners1 = marker1.getListeners(MarkerChangeListener.class);
          assertFalse(Arrays.asList(listeners1).contains(plot));
          listeners2 = marker1.getListeners(MarkerChangeListener.class);
          assertFalse(Arrays.asList(listeners2).contains(plot));
      }
  
      /**
       * Checks that an XYPlot deregisters listeners when clearing markers.
       */
      @Test
      public void testListenersWithXYPlot() {
          XYPlot plot = new XYPlot();
          ValueMarker marker1 = new ValueMarker(1.0);
          ValueMarker marker2 = new ValueMarker(2.0);
          plot.addDomainMarker(marker1);
          plot.addRangeMarker(marker2);
          EventListener[] listeners1 = marker1.getListeners(
                  MarkerChangeListener.class);
          assertTrue(Arrays.asList(listeners1).contains(plot));
          EventListener[] listeners2 = marker1.getListeners(
                  MarkerChangeListener.class);
          assertTrue(Arrays.asList(listeners2).contains(plot));
          plot.clearDomainMarkers();
          plot.clearRangeMarkers();
          listeners1 = marker1.getListeners(MarkerChangeListener.class);
          assertFalse(Arrays.asList(listeners1).contains(plot));
          listeners2 = marker1.getListeners(MarkerChangeListener.class);
          assertFalse(Arrays.asList(listeners2).contains(plot));
      }
  
      /**
       * Records the last event.
       *
       * @param event  the event.
       */
      @Override
      public void markerChanged(MarkerChangeEvent event) {
          this.lastEvent = event;
      }
  
  }
  